mirror of
https://github.com/lux-tel/session-ios.git
synced 2026-10-30 20:38:32 +00:00
Morgan Pretty
5e384eb7fb
• Cleaned up API structures to be more consistent • Moved OpenGroupAPI into SessionNetworkingKit • Moved PushNotificationAPI into SessionNetworkingKit • Renamed to OpenGroupAPI to SOGSAPI
95 lines
3.7 KiB
Swift
95 lines
3.7 KiB
Swift
// Copyright © 2023 Rangeproof Pty Ltd. All rights reserved.
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//
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// stringlint:disable
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import Foundation
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import SessionUtil
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import SessionUtilitiesKit
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// MARK: - Messages
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public extension Crypto.Generator {
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static func ciphertextWithSessionBlindingProtocol(
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plaintext: Data,
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recipientBlindedId: String,
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serverPublicKey: String
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) -> Crypto.Generator<Data> {
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return Crypto.Generator(
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id: "ciphertextWithSessionBlindingProtocol",
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args: [plaintext, serverPublicKey]
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) { dependencies in
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var cPlaintext: [UInt8] = Array(plaintext)
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var cEd25519SecretKey: [UInt8] = dependencies[cache: .general].ed25519SecretKey
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var cRecipientBlindedId: [UInt8] = Array(Data(hex: recipientBlindedId))
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var cServerPublicKey: [UInt8] = Array(Data(hex: serverPublicKey))
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var maybeCiphertext: UnsafeMutablePointer<UInt8>? = nil
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var ciphertextLen: Int = 0
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guard !cEd25519SecretKey.isEmpty else { throw MessageSenderError.noUserED25519KeyPair }
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guard
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cEd25519SecretKey.count == 64,
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cServerPublicKey.count == 32,
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session_encrypt_for_blinded_recipient(
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&cPlaintext,
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cPlaintext.count,
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&cEd25519SecretKey,
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&cServerPublicKey,
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&cRecipientBlindedId,
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&maybeCiphertext,
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&ciphertextLen
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),
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ciphertextLen > 0,
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let ciphertext: Data = maybeCiphertext.map({ Data(bytes: $0, count: ciphertextLen) })
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else { throw MessageSenderError.encryptionFailed }
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free(UnsafeMutableRawPointer(mutating: maybeCiphertext))
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return ciphertext
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}
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}
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static func plaintextWithSessionBlindingProtocol(
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ciphertext: Data,
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senderId: String,
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recipientId: String,
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serverPublicKey: String
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) -> Crypto.Generator<(plaintext: Data, senderSessionIdHex: String)> {
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return Crypto.Generator(
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id: "plaintextWithSessionBlindingProtocol",
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args: [ciphertext, senderId, recipientId]
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) { dependencies in
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var cCiphertext: [UInt8] = Array(ciphertext)
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var cEd25519SecretKey: [UInt8] = dependencies[cache: .general].ed25519SecretKey
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var cSenderId: [UInt8] = Array(Data(hex: senderId))
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var cRecipientId: [UInt8] = Array(Data(hex: recipientId))
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var cServerPublicKey: [UInt8] = Array(Data(hex: serverPublicKey))
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var cSenderSessionId: [CChar] = [CChar](repeating: 0, count: 67)
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var maybePlaintext: UnsafeMutablePointer<UInt8>? = nil
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var plaintextLen: Int = 0
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guard !cEd25519SecretKey.isEmpty else { throw MessageSenderError.noUserED25519KeyPair }
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guard
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cEd25519SecretKey.count == 64,
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cServerPublicKey.count == 32,
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session_decrypt_for_blinded_recipient(
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&cCiphertext,
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cCiphertext.count,
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&cEd25519SecretKey,
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&cServerPublicKey,
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&cSenderId,
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&cRecipientId,
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&cSenderSessionId,
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&maybePlaintext,
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&plaintextLen
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),
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plaintextLen > 0,
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let plaintext: Data = maybePlaintext.map({ Data(bytes: $0, count: plaintextLen) })
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else { throw MessageReceiverError.decryptionFailed }
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free(UnsafeMutableRawPointer(mutating: maybePlaintext))
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return (plaintext, String(cString: cSenderSessionId))
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}
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}
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}
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